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SQL Injection Pattern (Basic) Regex Pattern

Detects common SQL injection attack patterns including OR-based, UNION, and command injection.

Security
Advanced
Difficulty
SQL
Language
i
Flags
// Regular Expression
/(?:'\s*(?:OR|AND)\s+.*=.*|;\s*(?:DROP|DELETE|UPDATE|INSERT)\s|UNION\s+SELECT|--\s*$)/i

Live Regex Tester

Pattern Breakdown

(?:'\s*(?:OR|AND)\s+.*=.*|;\s*(?:DROP|DELETE|UPDATE|INSERT)\s|UNION\s+SELECT|--\s*$)
Character class [ ]
Group ( )
Quantifier { }
Anchor ^ $
Repetition * + ?
Escape \
Alternation |
Any char .

Code Examples

JavaScript

const regex = /(?:'\s*(?:OR|AND)\s+.*=.*|;\s*(?:DROP|DELETE|UPDATE|INSERT)\s|UNION\s+SELECT|--\s*$)/i;
const test = "' OR 1=1 --";
console.log(regex.test(test)); // true

// Extract matches
const matches = test.match(regex);
console.log(matches);

Python

import re

pattern = r'(?:'\s*(?:OR|AND)\s+.*=.*|;\s*(?:DROP|DELETE|UPDATE|INSERT)\s|UNION\s+SELECT|--\s*$)'
test = "' OR 1=1 --"
match = re.search(pattern, test, re.IGNORECASE)
print(match)  # Found!

Go

package main

import (
    "fmt"
    "regexp"
)

func main() {
    re := regexp.MustCompile(`(?:'\s*(?:OR|AND)\s+.*=.*|;\s*(?:DROP|DELETE|UPDATE|INSERT)\s|UNION\s+SELECT|--\s*$)`)
    fmt.Println(re.MatchString("' OR 1=1 --")) // true
}

Common Use Cases

Web application firewallinput validationsecurity scanning

Match Examples

InputResult
' OR 1=1 --Match
normal search queryNo Match

About the SQL Injection Pattern (Basic) Regex

Detects common SQL injection attack patterns including OR-based, UNION, and command injection.

Regular expressions (regex) are powerful pattern matching tools used across virtually all programming languages. The sql injection pattern (basic) pattern is classified as advanced difficulty in the security category. This pattern is specifically designed for SQL.

When using this regex, always consider edge cases and test thoroughly with real-world data. Use the interactive tester above to validate the pattern against your specific inputs before deploying to production.

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Frequently Asked Questions

What is the SQL Injection Pattern (Basic) regex pattern?

Detects common SQL injection attack patterns including OR-based, UNION, and command injection.

How do I use the SQL Injection Pattern (Basic) regex?

Use the pattern /(?:'\s*(?:OR|AND)\s+.*=.*|;\s*(?:DROP|DELETE|UPDATE|INSERT)\s|UNION\s+SELECT|--\s*$)/i in your code. In JavaScript: new RegExp('(?:\'\s*(?:OR|AND)\s+.*=.*|;\s*(?:DROP|DELETE|UPDATE|INSERT)\s|UNION\s+SELECT|--\s*$)', 'i'). Test it above with your own input.

What does this SQL Injection Pattern (Basic) regex match?

This pattern matches: "' OR 1=1 --". It does NOT match: "normal search query". Web application firewall, input validation, security scanning.

Is the SQL Injection Pattern (Basic) regex beginner-friendly?

This pattern is rated Advanced. It uses advanced features like lookaheads, backreferences, or complex alternation.

What languages support the SQL Injection Pattern (Basic) regex?

This pattern works in SQL. Syntax may vary slightly between regex engines.

Can I modify the SQL Injection Pattern (Basic) regex for my use case?

Yes! Use the interactive tester above to modify the pattern and test with your own data. Common modifications include making it case-insensitive (add 'i' flag), matching globally (add 'g' flag), or adjusting character classes.